Rotary web-printing machine.



PATENTED 001". so, 1906.

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PATENTED OCT. 30, 1906. 11.0. ANNAND. ROTARY WEB PRINTING MACHINE.

lAPPLIGATION FILED MAR.18, 1905.

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APPLIOATION FILED MAR, 18, 1905.

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No. 834,602. PATENTED OCT. 30, 1906.

R. O. ANNAND. ROTARY WEB PRINTING MACHINE.

APPLIUATION FILED MAR 18, 1906.

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i riw Nm 884,602. PATENTED OCT. 30, 1906.

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No. 834.602. PATENTED OCT. 30, 1906.

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ROTARY WEB PRINTING MACHINE.

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APPLICATION FILED MAR. 18. 1905.

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No. 834,602. PATENTED OUT. 30, 1906 v R. G. ANNAND,

ROTARY WEB PRINTING MACHINE.

18 SHEETS-SHEET 18.

APPLICATION TILED MAR. 18. 1905- w E S Qv E w ROBERT GUMMING ANNAND, OF SOUTH SHIELDS, ENGLAND.

ROTARY WEB-PRINTING MACHINE.

Specification of Letters Patent.

Patented Oct. 30, 1908.

Application filed March 18, 1905. Seiial N0. 250,710.

To all whom it mag concern:

Be it known that-I, ROBERT CUMMING AN- NAND, r'inters. engineer, a subject of the King'oi Great Britain and Ireland, residing in South Shields, En land, have invented certain new and useiu Improvements in or Relating to Rotary Web-Printing Machines,

of which the following is a specification.

This invention relates to rotary web-printing machines; and its chief object is to provide machinery which will produce various lengths of printed sheets that are folded and severed after the web has been printed.

Several attempts have been made with the object in question; but up to the present all such attempts have failed to provide a ractical working machine. As the resu t of I much study and experiment I have succeeded m providing a practical machine capable into sheets before machine which will produce various-sized of producing different sizes of products very efliciently at higl; speeds.

While the invention has been designed chiefly with the. main object above mentioned, certain of the features or elements of the improved apparatus, though specially useful in machinery for dealing with various lengths of printed sheets, can be employed with advantage in other types of rotary webprinting apparatus, and such employment is included in the present invention.

In order to get a rotary web-machine to print and fold sheets varying in length, it has itherto been found necessary to cut the web rinting. This type of machine has many efects, chiefly due to the cutting of the sheets before printing, as these Sheets have to be carried through the machine by grippers, tapes, and suction mechanism, and good printing and accurate folding cannot be effected except at a very slow speed.

' The present invention provides a practical products bothin length and breadth.

To illustrate the invention, I will describe,

. with the aid of the accompanying draw- I tionsand details.

ings, one example of machine embodying the improvements and then certain modifica- The expression delivery mechanism in accordance with the usual practice includes all mechanism for folding, cutting,: or performing other operations on the web after printing.

In the drawings, Figures 1 to 14 illustrate a machine arranged or adapted to print the web on both sides, slit it longitudinally,

anism u der.

associate and fold the slit web .to four-ply,

sever the four-ply into sheets, and fold same into sixteen or thirty-two page products. Fig. 1 is a diagrammatic side elevation of the machine. Figs. 2 and 3 are respectively a front elevation and a side view, both partly in section, of the mechanism for loo ing the web bein printed. Fig. 4 is a detai view of the cam or this looping mechanism. Fig. 5 is apart side elevation of the delivery mechto and including the fold-former 106. Fig. 5 is a corresponding and continuation view including the perforating-cylinl ig. 6 is a plan ofders 108 and tapes 112. folder-bars, associating-rollers, and foldformer; Fig. 7, a corresponding view of Fig. 5. Fig. 7 is a rear elevation of Fig. 5. Fig. 8 is a front elevation of longitudinal slitting mechanism. Fig. 9 is a part side elevation of the remainder of the delivery nv echanism. Figs. 10, 11, 12, and 13 are sectional views oi" the mechanism for severing and furtl er folding the longitudinally-folded web and showing successive stages of the folding operation,

Figs.- 10, 12, and 13 being on an enlarged scale. Fig. 14 is a corresponding plan View.

- Figs. 15 and 16 are diagrams, res iectively, in

side and part front elevation o a modified folding and delivery mechanism; and Fig. 17 is a sectional detail view illustrating means for adjusting the operative members of the folding-cylinders 208 and 212. Figs. 18 to 20 are part-diagrammatic views .corresponding to Figs. 15 and 16,- showing the product in vs ious positions. are respectively a cross-section, end elevation, and part longitudinal section of im proved pasting mechanism.

1 the reel of paper, mounted as usual. The web 2 is first introduced between lrawing-rollers 3 4. The roller 3 is driven by gear 6, meshing with a gear 5 on the same shalt through the medium of gears 7 and 8 and a gear 9 on the shaft of the lower steremcylim Gear 6 is carried on the adjustable quadrant 1.0. The gear 5 is interchangeable with other gear-wheels to enable the speed. of the drawing-rollers to be varied, so as to supply the length of paper required during one revolution of the printing-cylinders, according to the size oi sheet to be printed. The

web next passes around a fixed guide-roller. 11, under a looping-roller 12, and then be-' Figs. 21, 22, and 23 roller 15 and fixed thence between the and impression-cylinder 19, which perfect coupled together,

vertlcal reclprocating motion'ean be given inders 13 1-1 and 1e 19 the printing-o1. a, print the other side of the Web. Registering-roller 15 is adjustable in any ordinary or suitable wayas, for instance, by means of a rack and pinion 2O 21 at each side of the machine, operated by a hand-wheel 22 on the shaft carrying the pini'ons. When the machine is printing the smallest size of sheet, the web passes to the printing-couple 18 19 in a straight line; but when larger sizes are being produced roller 15 is drawn in to a corresponding extent, so

as to form a loop in the web, and so insure that the printing-couple 18 19 shall print the second side of the web accurately opposite printing- The rollers 16 17 are so ar-v ranged that whatever amount of loop the registering-roller 15 is set to produce the Web is kept from rubbing on the cylinders 13 14 and 18 19.

From cylinders 18 1%) the .web passes over a looping-roller 23, then under a stationary.

guide-r0 ler 24, and thence preferably to feeding-out mechanism driven by gearing which can be changed so as to regulate the flow of the paper to the delivery mechanism of the machine. This feeding-out mechprevents undue strain on that part of the web which is being printed and also that part manipulated by the looping-rollers. It consists of a feeding-out roller and endless margin-tapes 26, passing around idle rollers 27 '28 and also around adjustable tensionpulleys 29, mounted at each side of the machine. The roller 25 is driven by an interchangeable gear-wheel 30, mounted on an adjustable quadrant-arm 31 and meshing with a gear 32 on the shaft of roller 25 and with a gear 33, whicn in turn meshes with the gear-wheel 56, referred to later. The taperoller 27 is geared to the roller 25 by toothed wheels 34 and 35 on the respective shafts of these rollers. From this feeding-out mechanism the web passes to the delivery mechanism, described later.

The respective stereo and impression cylare geared together as usual, their pitch-circles being equal to the lengest'sheet the machine is built to print. The distance between the points of contact of'the respective couples should be equal to the length of the smallest sheet to be produced. The dimensions of the stereo-cylinders may be such as to take in four pages in the circumference of each cylinder and four pages inthe length.

The looping-rollers 12 and 23 are carried by bearings 36, attached to vertical side tubes or rods 37 37, (see Fig. 2,) whereby they are so that an intermittent to them to loop up and give eat the surplus guide-rollers 16 17 and upper stereo-cylinder 18 the machine is web supplied by the drawing-rollers 3 4 when l printing smaller lengths of sheet than the maximum.

I have found that it is essential to the successful practical operation of the machine that during the time the blank portions of the printing-cylinders are passing the printing point in printing sizes less than the maximum the web must be first gradually arrested before the printing-couples,. then slightly retracted, and then restarted forward at a gradually-increasing speed, so as to be traveling at the same surface speed as the printingsurfaces when these again reach the printingpoint and grip the web. The web is thus alive when it is gripped between the printing and impression surfaces, and an even and regular feed is insured, preventing the strain and tearing which would occur if the web were arrested during the period in question, and thus subjected to sudden starting and stopping. traction of the web prevents wastage of paper on large margins. To attain the object mentioned, I operate the looping-rollers in such manner that their speed during that part of their motion which corresponds to the passage of the blank portions of the stereocylinders opposite the printing-point first increases gradually to a maximum, so that the web is gradually arrested and slightly drawn back, whereupon, and still durin the passage of the blank parts opposite the printing-point, the speed of the loopin -rollers in the opposite direction is gradual y increased, so as to gradually feed the web forward until when it is again gripped between the printing and impression surfaces it is traveling at the proper surface speed. To attain this result, I employ special cams, as described later.

The tubes 37 terminate at bottom in blocks 38, which slide in grooves 39 in plates 40, attached to the framework at each side of the machine. 41 41 are geanwhecls mounted in bearings 42 42 near the lower ends of the tubes 37 and driven by the transverse shaft 43 through the gears 44 44 on this shaft, which receives its motion from the stereo-cylinder 13 through the gears 7 8 9. The gears 41 make one revolution for each revolution of the printing-cylinders. On the inside face of each gear-wheel 41 is fixed a speedcam 45. Cam-rollers 46 46 are carried on the sliding blocks 38 and are held in working contact with the respective cams in any suit able way-for example, by springs 47 47 coiled on the tubes 37 and bearing against fixed abutments on the frame. Instead 'of employing springs the rollers 46 may work in cam-grooves in the face'of the cam-plates.

The change-gear of the drawing-rollers 3 4 and that of the roller 25 are set to feed-the proper amount 'of paper to give the right length of sheet re uired.

"When the mac 11116 is printing the maxi- 

